The field of sport and lifestyle management (SLM) includes three major eras which parallel cycles of conflict or stages of growth, development, and decline outlined in research. A review of relevant literature and examination of the situation in both Canada and the United States indicate that in the future SLM should return to a goal of service and provide a program that would enable it to realize full growth from an occupation to a profession. The stages included in Wilensky's "Chronological Life History of a Profession/Discipline" (1970) are related to DLM: (1) demonstrating that a substantial number of people are doing full-time activity; (2) establishing training schools; (3) founding professional associations; (4) conducting political lobbying; (5) developing codes of ethics; and (6) accrediting, certifying, and licensing. SLM managers can contribute as administrators, educators, and change agent researchers to service a broader target population in the areas of recreation, leisure, fitness, and athletic/sport organizations. The paper makes recommendations for the future of SLM based on a study by the American Assembly of Collegiate Schools of Business. SLM and physical and health education administration needs professionally trained, competent physical educators, with administrative expertise in theory and practice, who recognize the long-term benefits of gaining professional status for their occupation. (Contains 39 references.) (SM)